content/browser/web_contents/web_contents_view_mac.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MAC_H_
   6 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MAC_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #include <string>
  11 #include <vector>
  12
  13 #include "base/mac/scoped_nsobject.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "content/common/content_export.h"
  16 #include "content/common/drag_event_source_info.h"
  17 #include "content/port/browser/render_view_host_delegate_view.h"
  18 #include "content/port/browser/web_contents_view_port.h"
  19 #include "ui/base/cocoa/base_view.h"
  20 #include "ui/gfx/size.h"
  21
  22 @class FocusTracker;
  23 class SkBitmap;
  24 @class WebDragDest;
  25 @class WebDragSource;
  26
  27 namespace content {
  28 class PopupMenuHelper;
  29 class WebContentsImpl;
  30 class WebContentsViewDelegate;
  31 class WebContentsViewMac;
  32 }
  33
  34 namespace gfx {
  35 class Vector2d;
  36 }
  37
  38 CONTENT_EXPORT
  39 @interface WebContentsViewCocoa : BaseView {
  40  @private
  41   content::WebContentsViewMac* webContentsView_;  // WEAK; owns us
  42   base::scoped_nsobject<WebDragSource> dragSource_;
  43   base::scoped_nsobject<WebDragDest> dragDest_;
  44   BOOL mouseDownCanMoveWindow_;
  45 }
  46
  47 - (void)setMouseDownCanMoveWindow:(BOOL)canMove;
  48
  49 // Expose this, since sometimes one needs both the NSView and the
  50 // WebContentsImpl.
  51 - (content::WebContentsImpl*)webContents;
  52 @end
  53
  54 namespace content {
  55
  56 // Mac-specific implementation of the WebContentsView. It owns an NSView that
  57 // contains all of the contents of the tab and associated child views.
  58 class WebContentsViewMac : public WebContentsViewPort,
  59                            public RenderViewHostDelegateView {
  60  public:
  61   // The corresponding WebContentsImpl is passed in the constructor, and manages
  62   // our lifetime. This doesn't need to be the case, but is this way currently
  63   // because that's what was easiest when they were split.
  64   WebContentsViewMac(WebContentsImpl* web_contents,
  65                      WebContentsViewDelegate* delegate);
  66   virtual ~WebContentsViewMac();
  67
  68   // WebContentsView implementation --------------------------------------------
  69   virtual gfx::NativeView GetNativeView() const OVERRIDE;
  70   virtual gfx::NativeView GetContentNativeView() const OVERRIDE;
  71   virtual gfx::NativeWindow GetTopLevelNativeWindow() const OVERRIDE;
  72   virtual void GetContainerBounds(gfx::Rect* out) const OVERRIDE;
  73   virtual void OnTabCrashed(base::TerminationStatus status,
  74                             int error_code) OVERRIDE;
  75   virtual void SizeContents(const gfx::Size& size) OVERRIDE;
  76   virtual void Focus() OVERRIDE;
  77   virtual void SetInitialFocus() OVERRIDE;
  78   virtual void StoreFocus() OVERRIDE;
  79   virtual void RestoreFocus() OVERRIDE;
  80   virtual DropData* GetDropData() const OVERRIDE;
  81   virtual gfx::Rect GetViewBounds() const OVERRIDE;
  82   virtual void SetAllowOverlappingViews(bool overlapping) OVERRIDE;
  83   virtual bool GetAllowOverlappingViews() const OVERRIDE;
  84   virtual void SetOverlayView(WebContentsView* overlay,
  85                               const gfx::Point& offset) OVERRIDE;
  86   virtual void RemoveOverlayView() OVERRIDE;
  87
  88   // WebContentsViewPort implementation ----------------------------------------
  89   virtual void CreateView(
  90       const gfx::Size& initial_size, gfx::NativeView context) OVERRIDE;
  91   virtual RenderWidgetHostView* CreateViewForWidget(
  92       RenderWidgetHost* render_widget_host) OVERRIDE;
  93   virtual RenderWidgetHostView* CreateViewForPopupWidget(
  94       RenderWidgetHost* render_widget_host) OVERRIDE;
  95   virtual void SetPageTitle(const base::string16& title) OVERRIDE;
  96   virtual void RenderViewCreated(RenderViewHost* host) OVERRIDE;
  97   virtual void RenderViewSwappedIn(RenderViewHost* host) OVERRIDE;
  98   virtual void SetOverscrollControllerEnabled(bool enabled) OVERRIDE;
  99   virtual bool IsEventTracking() const OVERRIDE;
 100   virtual void CloseTabAfterEventTracking() OVERRIDE;
 101
 102   // Backend implementation of RenderViewHostDelegateView.
 103   virtual void ShowContextMenu(content::RenderFrameHost* render_frame_host,
 104                                const ContextMenuParams& params) OVERRIDE;
 105   virtual void ShowPopupMenu(const gfx::Rect& bounds,
 106                              int item_height,
 107                              double item_font_size,
 108                              int selected_item,
 109                              const std::vector<MenuItem>& items,
 110                              bool right_aligned,
 111                              bool allow_multiple_selection) OVERRIDE;
 112   virtual void HidePopupMenu() OVERRIDE;
 113   virtual void StartDragging(const DropData& drop_data,
 114                              blink::WebDragOperationsMask allowed_operations,
 115                              const gfx::ImageSkia& image,
 116                              const gfx::Vector2d& image_offset,
 117                              const DragEventSourceInfo& event_info) OVERRIDE;
 118   virtual void UpdateDragCursor(blink::WebDragOperation operation) OVERRIDE;
 119   virtual void GotFocus() OVERRIDE;
 120   virtual void TakeFocus(bool reverse) OVERRIDE;
 121
 122   // A helper method for closing the tab in the
 123   // CloseTabAfterEventTracking() implementation.
 124   void CloseTab();
 125
 126   WebContentsImpl* web_contents() { return web_contents_; }
 127   WebContentsViewDelegate* delegate() { return delegate_.get(); }
 128
 129  private:
 130   // Updates overlay view on current RenderWidgetHostView.
 131   void UpdateRenderWidgetHostViewOverlay();
 132
 133   // The WebContentsImpl whose contents we display.
 134   WebContentsImpl* web_contents_;
 135
 136   // The Cocoa NSView that lives in the view hierarchy.
 137   base::scoped_nsobject<WebContentsViewCocoa> cocoa_view_;
 138
 139   // Keeps track of which NSView has focus so we can restore the focus when
 140   // focus returns.
 141   base::scoped_nsobject<FocusTracker> focus_tracker_;
 142
 143   // Our optional delegate.
 144   scoped_ptr<WebContentsViewDelegate> delegate_;
 145
 146   // Whether to allow overlapping views.
 147   bool allow_overlapping_views_;
 148
 149   // The overlay view which is rendered above this one.
 150   // Overlay view has |underlay_view_| set to this view.
 151   WebContentsViewMac* overlay_view_;
 152
 153   // The offset of overlay view relative to this view.
 154   gfx::Point overlay_view_offset_;
 155
 156   // The underlay view which this view is rendered above.
 157   // Underlay view has |overlay_view_| set to this view.
 158   WebContentsViewMac* underlay_view_;
 159
 160   scoped_ptr<PopupMenuHelper> popup_menu_helper_;
 161
 162   DISALLOW_COPY_AND_ASSIGN(WebContentsViewMac);
 163 };
 164
 165 }  // namespace content
 166
 167 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MAC_H_